/// <summary>
/// Handles invocation of GetGroupHeaderStyle events
/// </summary>
internal void DoGetGroupHeaderStyleEvent(
GridGroup gridRow, StyleType eStyle, ref GroupHeaderVisualStyle style)
{
if (GetGroupHeaderStyle != null)
{
GridGetGroupHeaderStyleEventArgs ev = new
GridGetGroupHeaderStyleEventArgs(gridRow.GridPanel, gridRow, eStyle, style);
GetGroupHeaderStyle(this, ev);
style = ev.Style;
}
}
private void InitGroupHeaderStyles(DefaultVisualStyles visualStyle, ColorFactory factory)
{
GroupHeaderVisualStyle style = new GroupHeaderVisualStyle();
style.AllowWrap = Tbool.True;
style.Alignment = Alignment.MiddleLeft;
style.Font = SystemFonts.DefaultFont;
style.Background = new
Background(factory.GetColor(0xFFFFFF));
style.UnderlineColor = factory.GetColor(0x444444);
style.RowHeaderStyle.Background = new Background(factory.GetColor(0xBABABA));
style.RowHeaderStyle.BorderHighlightColor = GetBorderHighlight(factory);
style.RowHeaderStyle.Font = SystemFonts.DefaultFont;
visualStyle.GroupHeaderStyles[StyleType.Default] = style;
}
///<summary>
/// GridGetGroupHeaderStyleEventArgs
///</summary>
///<param name="gridPanel"></param>
///<param name="gridRow"></param>
///<param name="styleType"></param>
///<param name="style"></param>
public GridGetGroupHeaderStyleEventArgs(
GridPanel gridPanel, GridGroup gridRow, StyleType styleType, GroupHeaderVisualStyle style)
: base(gridPanel)
{
_GridRow = gridRow;
_StyleType = styleType;
_Style = style;
}
private void RenderHeaderUnderline(Graphics g,
GridPanel panel, GroupHeaderVisualStyle style, Rectangle r)
{
if (panel.ShowGroupUnderline == true && style.UnderlineColor.IsEmpty == false)
{
switch (style.Alignment)
{
case Alignment.MiddleLeft:
case Alignment.MiddleCenter:
case Alignment.MiddleRight:
r.Y += (r.Height + _TextSize.Height) / 2 + 4;
break;
case Alignment.TopLeft:
case Alignment.TopCenter:
case Alignment.TopRight:
r.Y += _TextSize.Height + 6;
break;
default:
r.Y = r.Bottom - _TextSize.Height / 2;
break;
}
if (r.Width > SViewRect.Width)
r.Width = SViewRect.Width;
int n = r.Width;
r.Height = 1;
r.Width = (int)(r.Width * .75);
Rectangle t = r;
Color color1 = style.UnderlineColor;
Color color2 = Color.Transparent;
switch (style.Alignment)
{
case Alignment.TopCenter:
case Alignment.MiddleCenter:
case Alignment.BottomCenter:
r.X += (n - r.Width) / 2;
r.Width /= 2;
color1 = Color.Transparent;
color2 = style.UnderlineColor;
break;
case Alignment.TopRight:
case Alignment.MiddleRight:
case Alignment.BottomRight:
r.X += n - r.Width;
color1 = Color.Transparent;
color2 = style.UnderlineColor;
break;
}
t.X = r.X;
using (LinearGradientBrush br = new
LinearGradientBrush(r, color1, color2, 0f))
{
br.WrapMode = WrapMode.TileFlipXY;
g.FillRectangle(br, t);
}
}
}
private void InitGroupHeaderStyles(DefaultVisualStyles visualStyle, ColorFactory factory)
{
MetroPartColors metroColors = _MetroPartColors;
GroupHeaderVisualStyle style = new GroupHeaderVisualStyle();
style.AllowWrap = Tbool.True;
style.Alignment = Alignment.MiddleLeft;
style.Font = SystemFonts.DefaultFont;
style.Background = new
Background(factory.GetColor(metroColors.CanvasColor));
style.UnderlineColor = factory.GetColor(metroColors.ComplementColor);
style.RowHeaderStyle.Background = new Background(factory.GetColor(metroColors.CanvasColorLighterShade));
style.RowHeaderStyle.BorderHighlightColor = GetBorderHighlight();
style.RowHeaderStyle.Font = SystemFonts.DefaultFont;
style.TextColor = metroColors.TextColor;
visualStyle.GroupHeaderStyles[StyleType.Default] = style;
}
private void RenderHeaderText(Graphics g,
GroupHeaderVisualStyle style, Rectangle r)
{
eTextFormat tf = style.GetTextFormatFlags();
if (style.Alignment == Alignment.BottomLeft ||
style.Alignment == Alignment.BottomCenter ||
style.Alignment == Alignment.BottomRight)
{
r.Height -= 4;
}
if (r.Width > 0 && r.Height > 0)
{
if (_GroupTextMarkup != null)
RenderTextMarkup(g, _GroupTextMarkup, style, r);
else
TextDrawing.DrawString(g, Text, style.Font, style.TextColor, r, tf);
}
}
private void RenderTextMarkup(Graphics g,
BodyElement textMarkup, GroupHeaderVisualStyle style, Rectangle r)
{
MarkupDrawContext d =
new MarkupDrawContext(g, style.Font, style.TextColor, false);
textMarkup.Arrange(new Rectangle(r.Location, r.Size), d);
Size size = textMarkup.Bounds.Size;
switch (style.Alignment)
{
case Alignment.MiddleLeft:
case Alignment.MiddleCenter:
case Alignment.MiddleRight:
if (r.Height > size.Height)
r.Y += (r.Height - size.Height) / 2;
break;
default:
if (r.Height > size.Height)
r.Y = r.Bottom - size.Height;
break;
}
textMarkup.Bounds = new Rectangle(r.Location, size);
Region oldClip = g.Clip;
try
{
g.SetClip(r, CombineMode.Intersect);
textMarkup.Render(d);
}
finally
{
g.Clip = oldClip;
}
}
private void RenderRowHeader(Graphics g,
GridPanel panel, GroupHeaderVisualStyle style, Rectangle r)
{
if (CanShowRowHeader(panel) == true)
{
r.Width = panel.RowHeaderWidth;
using (Brush br = style.RowHeaderStyle.Background.GetBrush(r))
g.FillRectangle(br, r);
using (Pen pen = new Pen(style.RowHeaderStyle.BorderHighlightColor))
{
g.DrawLine(pen, r.X + 1, r.Top, r.Right - 2, r.Top);
g.DrawLine(pen, r.X + 1, r.Top, r.X + 1, r.Bottom - 1);
}
GridPanelVisualStyle pstyle = panel.GetEffectiveStyle();
using (Pen pen = new Pen(pstyle.HeaderLineColor))
{
g.DrawLine(pen, r.X, r.Top - 1, r.Right - 1, r.Top - 1);
g.DrawLine(pen, r.X, r.Bottom - 1, r.Right - 2, r.Bottom - 1);
g.DrawLine(pen, r.Right - 1, r.Top, r.Right - 1, r.Bottom - 1);
}
r.X += 4;
r.Width -= 4;
int n = RenderIndicatorImage(g, panel, this, r);
r.X += n;
r.Width -= n;
if (panel.ShowRowGridIndex == true)
RenderGridIndex(g, this, style.RowHeaderStyle, r);
}
}
private void RenderGroupBackground(
Graphics g, GroupHeaderVisualStyle style, Rectangle r)
{
if (style.Background != null && style.Background.IsEmpty == false)
{
using (Brush br = style.Background.GetBrush(r))
g.FillRectangle(br, r);
}
}
private Rectangle GetAdjustedBounds(GroupHeaderVisualStyle style, Rectangle r)
{
r.X += (style.Padding.Left);
r.Width -= (style.Padding.Horizontal);
r.Y += (style.Padding.Top + 2);
r.Height -= (style.Padding.Vertical + 2);
return (r);
}
private Size GetMarkupTextSize(Graphics g,
BodyElement textMarkup, GroupHeaderVisualStyle style, int width)
{
MarkupDrawContext d =
new MarkupDrawContext(g, style.Font, style.TextColor, false);
textMarkup.InvalidateElementsSize();
textMarkup.Measure(new Size(width, 0), d);
return (textMarkup.Bounds.Size);
}
private Size MeasureHeaderText(Graphics g,
GroupHeaderVisualStyle style, Size constraintSize)
{
Size size = Size.Empty;
string s = Text;
if (string.IsNullOrEmpty(s) == false)
{
if (_GroupTextMarkup != null)
{
size = GetMarkupTextSize(g,
_GroupTextMarkup, style, constraintSize.Width);
}
else
{
eTextFormat tf = style.GetTextFormatFlags();
size = (constraintSize.IsEmpty == true)
? TextHelper.MeasureText(g, s, style.Font)
: TextHelper.MeasureText(g, s, style.Font, constraintSize, tf);
}
}
return (size);
}
private Size MeasureGroupText(Graphics g,
GroupHeaderVisualStyle style, Size constraintSize)
{
_TextSize = Size.Empty;
if (String.IsNullOrEmpty(Text) == false)
{
GridPanel panel = GridPanel;
if (panel.IsSubPanel == false)
{
if (panel.ShowGroupExpand == true)
{
constraintSize.Width = SViewRect.Width;
int n = panel.TreeButtonIndent +
(panel.LevelIndentSize.Width * IndentLevel);
constraintSize.Width -= n;
}
}
_TextSize = MeasureHeaderText(g, style, constraintSize);
}
return (_TextSize);
}
private GroupHeaderVisualStyle GetStyle(StyleType e)
{
if (_EffectiveVisualStyles.IsValid(e) == false)
{
GroupHeaderVisualStyle style = new GroupHeaderVisualStyle();
StyleType[] css = style.GetApplyStyleTypes(e);
if (css != null)
{
foreach (StyleType cs in css)
{
style.ApplyStyle(SuperGrid.BaseVisualStyles.GroupHeaderStyles[cs]);
style.ApplyStyle(SuperGrid.DefaultVisualStyles.GroupHeaderStyles[cs]);
style.ApplyStyle(GridPanel.DefaultVisualStyles.GroupHeaderStyles[cs]);
style.ApplyStyle(GroupHeaderVisualStyles[cs]);
}
}
SuperGrid.DoGetGroupHeaderStyleEvent(this, e, ref style);
if (style.Background == null || style.Background.IsEmpty == true)
style.Background = new Background(Color.White);
if (style.Font == null)
style.Font = SystemFonts.DefaultFont;
if (style.TextColor.IsEmpty)
style.TextColor = Color.Black;
_EffectiveVisualStyles[e] = style;
}
return (_EffectiveVisualStyles[e]);
}